Microsoft_PowerPoint___EC3Intro158

Microsoft_PowerPoint___EC3Intro158 - EC3 RC circuits In...

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EC3 RC circuits In this lab you will accomplish the following tasks: 1. Study the discharging of a capacitor through a resistor 2. Study the charging of a capacitor through a resistor 3. Study capacitors connected in series 4. Study capacitors connected in parallel (page 1)
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S R C +Q -Q Consider a capacitor C that at t = 0 has charges Q on its plates. At t = 0 we close the switch S. As a res Discharging of a capacito ult, a current I flows th r through a rough the c i resist rcuit or and ± the capacitor looses its charge. / C / R / The charge q(t) of the capacitor is given by the equation: The current The potential V across R is given by: The potentail V across C is given b y t tRC R qQ e dq Q Ie dt RC Q VI R e C = == / he equation: The procuct RC is defined as the time constant of the cir = cuit C Ve CC RC τ = = (page 2)
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S R C E Consider the intitially uncharged capacitor C connected as shown in the figure. At t = 0 we close the switch Charging of a capacitor thr S. As a result, a current ough a resist
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Microsoft_PowerPoint___EC3Intro158 - EC3 RC circuits In...

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